Vintage Advertising Pencils in Wooden Box with Glass Lid

Wooden display box with a glass-top lid holding a large set of vintage advertising pencils. Pencils are wood with painted barrels in red, yellow, green and blue, with printed business names such as Warren Buchanan, Inland Truck & Diesel Co., Mid Products, John Lentz's, Jack Nelson and Oakwood Motor Co. Two folded aspirin/headache advertising cards are tucked in with the pencils. Some printing is worn and faded, and a few pencils show chipped or worn ends. Please check: total number of pencils, whether all are original to the box, the box's maker and age, and the exact era of the pencils.